FastCopy Enhances File Transfers on Windows

FastCopy, a free file transfer utility developed in Japan since 2004, enhances Windows file operations by providing speed and reliability. It outperforms Windows Explorer by using direct I/O and optimized buffer management. In transferring a 15.7 GB folder to an external SSD, FastCopy completed the task 24% faster than Explorer.

Performance Improvements

FastCopy handles bulk transfers efficiently by bypassing Windows shell operations. It supports internal, external, and network storage while minimizing CPU and memory use. The tool can run as a portable application or be installed with shell integration. Users can benefit from a 24% speed improvement compared to Windows Explorer, especially on slower drives or larger jobs.

Key Features and Options

The 5 MB utility includes various modes such as 'Diff (No Overwrite)' and 'Diff (Size/Date)' for selective copying. It features customizable buffer sizes starting at 512 MB. Additional options allow users to verify transfers and execute post-transfer actions like notifications or shutting down the system. FastCopy also supports command-line interface for automated tasks.

For specific needs, include and exclude filters with wildcards can manage file types selectively. FastCopy serves both as a troubleshooting tool and a backup solution with Task Scheduler compatibility.

Overall, FastCopy addresses limitations in Windows Explorer, making it suitable for media libraries and other substantial file transfer needs.

Update: 17 Jun 2026